package com.twq.state;

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * @author twq
 * @date 2021/8/21 8:46
 */

//模拟倒计时
public class TestStop2 {

//    打印当前时间
    public static void main(String[] args) {
        Date date = new Date(System.currentTimeMillis());//获取系统当前时间

        while (true){
            try {
                Thread.sleep(1000);
                System.out.println(new SimpleDateFormat("HH:mm:ss").format(date));
               //跟新当前时间
                date = new Date(System.currentTimeMillis());//获取系统当前时间

            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

//    模拟倒计时
    public static void tenDown() throws InterruptedException {
        int num = 10;
        while (true){
            Thread.sleep(1000);
            System.out.println(num--);
            if (num<=0){
                break;
            }
        }
    }
}
